Explaining how a fly inside a rocket traveling near the speed of light cannot break the light barrier due to relativity.

Time is not absolute, and Einstein argued that different observers experience the present differently depending on relativity ...

Black holes, regions of spacetime in which gravity is so strong that nothing can escape, are intriguing and extensively ...

The search for quantum gravity is the next big step in physics, as researchers seek to unify the physics of the very small ...

At the turn of the century, it sounded as if string theory could give us big answers about the universe. Well… has it?

String theory unifies all the forces of nature. Forces that seem very different, such as gravity and electricity, are deeply ...

We live in the present, moving through time. As events come and go, everything fades into the past. But what is time, really?

Philosophy of science treats knowledge as ever-evolving, rather than fixed in place. Scientific theories do not need to ...

In 1980, Stephen Hawking gave his first lecture as Lucasian Professor at the University of Cambridge. The lecture was called ...

Ben Dreyfuss, son of actor Richard Dreyfuss, got candid on his estranged relationship with his father in a series of social ...

A century ago, a star in Andromeda named V1 launched a revolution in astronomy, revealing its true immensity and the origin ...

"I said, 'Get your coat, we’re leaving.' We were the only valets that night, so everyone had to go find their own cars when ...